Aud james



W. AMENDE L- F. KUHNHENN AND J T. HENRY. CONCRETE MIXER.

AHP-LICAIIQN min Mn. 13. l9l7- 1,323,434, Patented Dec. 2,1919.

2 SHEETS-SHEET I.

W. AMENDE, L. F. KUHNHE-NN AND J. T. HENRY. CONCRETE MIXER. M-wwmu. mu m 13. m1

,1,32 3,434. Patented Dec. 2,1919.

2 SHEETS-SHEET 2- a rears wr anion,

WILLIAM AMENDE AND LESTER F. KUHNHENN, OF BELMONT, WISCONSIN, AND JAMES T. HENRY, OF DOLAND, SOUTH DAKOTA.

CONCRETE-MIXER.

Application filed March 13, 1917. Serial No. 154,529.

To all whom it may concern: I

Be it known that we, (1) WILLIAM AMENDE, and (2) Lns'rnn F. KUHNHENN, and (3) JAMES T. HENRY, (1) a subject of the Emperor of Germany, and (2) and (3) citizens of the United States, and residents of (1) and (2) Belmont, in the-county of Lafayette, and State of Wisconsin, and (3) resident of Doland, in the county of Spink, and State of South Dakota, have invented certain new and useful Improvements in Concrete-Mixers, of which the following is a. specification. V

This invention relates to new and useful improvements in concrete mixers, and more particularly a concrete mixer of the roller type, which embodies a mixing hopper that has associated therewith means whereby the hopper may be moved over the ground, and rotated upon said movement to thoroughly mix the concrete contained therein.

lVith these and other objects in view our invention consists of the novel features of construction, combination and arrangement of parts which will be herein referred to and more particularly pointed out in the specification and claim.

In the accompanying drawing:

Figure 1 is a side elevational view of the device showing a portion of the hopper in section; V

Fig. 2 is a top plan view of the concrete mixer;

Fig. 3 is a horizontal section taken through the tread member and hopper, and

Fig. 1 is a detail perspective of the handles that are connected with the vdevice for moving the same.-

In describing our invention we shall refer to the drawings in which similar reference characters designate corresponding parts throughout the several views. The numeral 1 designates the supporting and carrying means which provides an annular tread member that is adapted to carry the mixing hopper 2, which is concentrically mounted therein with respect to the inner wall of the same. The mixing hopper 2 is formed of two frusto-conical shaped sections 3 and 1, which have their base edgesprovided with rows of projecting flanges 5, that are connected by fastening means 7 positioned therethrough as clearly shown in Fig. 3 of the drawings. The hopper 2 is provided with a plurality of inwardly projecting'mixing blades 8, which extend from the inner surfaces of the portions 3 and t of the hopper, the purpose of which is obvious; The hopper 2 is concentrically mounted with respect to the supporting member 1 by means of a plurality of radially projecting arms 9 forming spokes, that are disposed adjacent the opposite edges of the member and have their laterally bent ends secured to the drum and hopper by rivets, bolts or any other desired type of fastening means.

The end portions of the hopper 2 project from opposite sides of the tread member as clearly shown in Fig. 3 of the drawings, and mounted adjacent said ends are bearings '10. There are two of these bearings provided in substantial parallel relation, and for the sake of brevity we will only specifically describe one of the same. The bearings 10 include races 11, which are secured to the inclined portions of the mixer, and which have adapted to be disposed therein a plurality of rollers 12. These roller bearings are held in the races by means of split bands 13, which are formed of two semicircular sections having their-opposite ends provided with laterally extending extensions l4: and 15, which are fastened by bolts or rivets as shown at 16. The extensions 15 project laterally from the bearing rings 13, and beyond the outer periphery of the member 1 for a purpose to be hereinafter more fully described.

To move the device to cause the hopper to rotate, therein, we have provided a pair of handles 17, that are provided with ofi'set portions 18 adjacent their inner ends, and which have said inner ends 19 flattened, and connected to the extensions 15 of the bearing rings by the fastening members 16 hereinbefore described. The handles 17 will be normally disposed horizontally by means of integral supports 20 that are connected therewith, and which extend from said handles to the ground on which the drum 1 is positioned. These handles 17 will be spaced apart when in position so that they may be easily grasped when it is desired to move the device for operatingthe same.

In operation when the various parts of the mixer are assembled as has been hereinbefore described, it is obvious that upon grasping the handles 17, and moving the Patented Dec. 2, 1919.

so as to mix the cement contained thoroughly mix the contents thereof. Owing to the fact that the inner ends of the handles '17 are connected to the projecting portions of the hopper by roller bearing connections, the rotation of the member 1 will be comparatively easy, so that the device is operable by hand. If desired however any other form of motive power may be employed.

The bearing races are secured to the projecting portions of the hopper by any desired means, it being only necessary that the annular races be disposed substantially parallel with the longitudinal axis of the hopper. This. device is very simple and compact, and will be found very efficient for mixing small batches of concrete.

From the foregoing description of the constructlon and operatlon of our new and improved concrete mixer, the manner of applying the same to use, and the operation thereof will be readily understood, and it will be seen that we have provided a simple and eflicient means for carrying out the objects of this invention.

Having thus fully described our invention, what we claim as new, and desire to secure by Letters Patent, is:

A concrete mixer including a hopper composed of a pair of frusto-conical sections having the enlarged ends secured together, independent mixing means on the inner surfaces of the hopper sections, an annular tread member arranged in surrounding relation about and spaced from the meeting edges of the hopper sections, a plurality of radially arranged arms forming spokes having the respective ends secured to the outer surfaces of the hopper sections near the meeting edges and to the inner periphery of and near the side edges ofthe tread mem ber, bandsarranged loosely about the hopper, andhandles connected to the bands.

In testimony whereof, we Et'ffiX our'signa tures hereto.

WILLIAM AMENDE. LESTER F. KUHNHENN. JAMES T. HENRY. 

